Nonlinear optical properties of modified DR1/silica films with highly ordered structures

Young Sun Cho; Kyung Shin Min; Jae Suk Lee; Gyoujin Cho; Kyeong Taek Jung; Yong Gun Shul; Tatsuo Wada; Hiroyuki Sasabe

doi:10.1080/10587259708032297

Nonlinear optical properties of modified DR1/silica films with highly ordered structures

Young Sun Cho, Kyung Shin Min, Jae Suk Lee, Gyoujin Cho, Kyeong Taek Jung, Yong Gun Shul, Tatsuo Wada, Hiroyuki Sasabe

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

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Abstract

Crosslinkable organic NLO chromophore (DRS) has been prepared and chemically incorporated into silica matrices using a sol-gel process. By monitoring the decay of UV absorbance as a function of time and temperatures, a number of electrically poled DRS/silica matrice system has been investigated to elucidate the relaxation behaviors of the oriented organic chromophore by the poling. The value of the second order NLO coefficient d₃₃ was 47 pm/V for the DRS/silica matrice films with 0.4 μm thickness. In addition, from the result of dramatic decreasing of UV absorbance after poling, it is speculated that the DRS may act as a liquid crystalline mesogenic groups and effectively oriented by the poling at the phase (nematic) transition temperature (80°C) and locked in by the crosslinking. The crosslinking reactions between silica matrices and DRS chromophores have been proved using ²⁹Si solid NMR measurement.

Original language	English
Pages (from-to)	263-266
Number of pages	4
Journal	Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume	294-95
DOIs	https://doi.org/10.1080/10587259708032297
Publication status	Published - 1997

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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title = "Nonlinear optical properties of modified DR1/silica films with highly ordered structures",

abstract = "Crosslinkable organic NLO chromophore (DRS) has been prepared and chemically incorporated into silica matrices using a sol-gel process. By monitoring the decay of UV absorbance as a function of time and temperatures, a number of electrically poled DRS/silica matrice system has been investigated to elucidate the relaxation behaviors of the oriented organic chromophore by the poling. The value of the second order NLO coefficient d33 was 47 pm/V for the DRS/silica matrice films with 0.4 μm thickness. In addition, from the result of dramatic decreasing of UV absorbance after poling, it is speculated that the DRS may act as a liquid crystalline mesogenic groups and effectively oriented by the poling at the phase (nematic) transition temperature (80°C) and locked in by the crosslinking. The crosslinking reactions between silica matrices and DRS chromophores have been proved using 29Si solid NMR measurement.",

author = "Cho, {Young Sun} and Min, {Kyung Shin} and Lee, {Jae Suk} and Gyoujin Cho and Jung, {Kyeong Taek} and Shul, {Yong Gun} and Tatsuo Wada and Hiroyuki Sasabe",

year = "1997",

doi = "10.1080/10587259708032297",

language = "English",

volume = "294-95",

pages = "263--266",

journal = "Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals",

issn = "1058-725X",

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TY - JOUR

T1 - Nonlinear optical properties of modified DR1/silica films with highly ordered structures

AU - Cho, Young Sun

AU - Min, Kyung Shin

AU - Lee, Jae Suk

AU - Cho, Gyoujin

AU - Jung, Kyeong Taek

AU - Shul, Yong Gun

AU - Wada, Tatsuo

AU - Sasabe, Hiroyuki

PY - 1997

Y1 - 1997

N2 - Crosslinkable organic NLO chromophore (DRS) has been prepared and chemically incorporated into silica matrices using a sol-gel process. By monitoring the decay of UV absorbance as a function of time and temperatures, a number of electrically poled DRS/silica matrice system has been investigated to elucidate the relaxation behaviors of the oriented organic chromophore by the poling. The value of the second order NLO coefficient d33 was 47 pm/V for the DRS/silica matrice films with 0.4 μm thickness. In addition, from the result of dramatic decreasing of UV absorbance after poling, it is speculated that the DRS may act as a liquid crystalline mesogenic groups and effectively oriented by the poling at the phase (nematic) transition temperature (80°C) and locked in by the crosslinking. The crosslinking reactions between silica matrices and DRS chromophores have been proved using 29Si solid NMR measurement.

AB - Crosslinkable organic NLO chromophore (DRS) has been prepared and chemically incorporated into silica matrices using a sol-gel process. By monitoring the decay of UV absorbance as a function of time and temperatures, a number of electrically poled DRS/silica matrice system has been investigated to elucidate the relaxation behaviors of the oriented organic chromophore by the poling. The value of the second order NLO coefficient d33 was 47 pm/V for the DRS/silica matrice films with 0.4 μm thickness. In addition, from the result of dramatic decreasing of UV absorbance after poling, it is speculated that the DRS may act as a liquid crystalline mesogenic groups and effectively oriented by the poling at the phase (nematic) transition temperature (80°C) and locked in by the crosslinking. The crosslinking reactions between silica matrices and DRS chromophores have been proved using 29Si solid NMR measurement.

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JO - Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals

JF - Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals

ER -

Nonlinear optical properties of modified DR1/silica films with highly ordered structures

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